Dec 17 (Reuters) - Following is a list of the 10 biggest sports earners in 2013. Total Salary/winnings Endorsements Sport 1. Tiger Woods $78 million $13m $65m Golf Tiger rediscovered his killer instinct in 2013, surging back to the top of the world rankings after a blistering start to the season when he won five of his first 11 events. Although he failed to add to his haul of 14 major victories his off-course income perked up, according to
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